Rburkes wrote:
Sorry tw is 620
That's a lot better than the 520, but still watch how you load as you are at the lower end of what is suggested. Obviously this varies from trailer to trailer, but wanted to mention it just in case you weren't aware of it.
As mentioned, go with the 1k lb bars. Or as posted, possibly look at the other hitches mentioned, The Reese SC is very similar to the Equal-I-Zer 4 way system, but the Reese does offer a little more fine tuning of the hitch head. Another plus for Reese is if you buy a different trailer down the road, you can swap the bars out instead of possibly needing to buy a whole new system with the Equal-I-Zer.
BUT you can't go wrong with the Equal-I-Zer, or any of the others posted.